In the main text we give the 
hairpin written by Chopin in FC (→GE1). The two-bar mark in GE2 (→GE3) is a result of a standard revision adjusting hairpins (and also, e.g. slurs) to rhythmic structures, e.g. bars.
Compare the passage in the sources »
category imprint: Graphic ambiguousness; Differences between sources
issues: Scope of dynamic hairpins, GE revisions, Authentic corrections of FC
notation: Articulation, Accents, Hairpins